Primary study · included by 1 review

Randomized controlled clinical study of veneered zirconia abutments for single implant crowns: Clinical, histological, and microbiological outcomes.

Thoma 2018 · Thoma Daniel S, Sailer Irena, Mühlemann Sven, et al. · Clinical implant dentistry and related research · 2018

Included by

Clinical Efficacy of Cemented Versus Screw-Retained Zirconia Single Crowns: A Systematic Review and Meta-Analysis.
Non-Cochrane · intervention · 2026 · cited as Thoma 2018 · Table 1; reference 26
Outcome this study informsPooled effectEvidenceCertainty
Bleeding on probing (BoP)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 5.18 [-5.92, 16.29]5 studies · 178 participantsVery low
Width of keratinized mucosa (KT)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.44 [-1.13, 0.26]2 studies · 56 participantsModerate
Marginal bone level (MBL)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.001]8 studies · 298 participantsModerate
Marginal bone level (MBL) change
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.00]NRGRADE not reported
Modified plaque index (MPLI)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 5.01 [-7.05, 17.06]2 studies · 57 participantsModerate
Marginal bone level (MBL) change
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD -0.04 [-0.08, -0.00]NRGRADE not reported
Probing depth (PD)
Cemented zirconia single crowns vs Screw-retained zirconia single crowns · Follow-up range 0.5 to 10 years
MD 0.03 [-0.16, 0.22]5 studies · 178 participantsModerate

1 including review in total.